feat: [ISSUE] Create dependencies between the prompts (use prior prompt in next prompt)

[snanatee-sfg]

Hi There Is it possible to create dependencies between the prompts? For example, if I have a prompt to extract the number of Figures (Figure_number), can I used the information from that prompt in the next prompt (i.e. For each of the Figure_number figures, extract the titles)? Thanks Shannon

[harini-venkataraman]

Hi @snanatee-sfg,

Yes, you can create dependencies using variable replacement. First, write a prompt that extracts the number of figures (e.g., prompt key: Figure_number).

In the next prompt, reference it with the following syntax for the prompt key - Example -

For each of the {{Figure_number}} figures, extract the titles.

Here {{Figure_number}} is replaced with the earlier prompt’s output.

If you need to enrich the value via an API, you can use the following syntax -

For each of the {{[Figure_number]https://your-api-endpoint.com}} figures, extract the titles.

Here the response of Figure_number will be passed as payload to the API, and the response will be replaced. This lets you chain prompts and pass outputs seamlessly.

[snanatee-sfg]

Amazing - thanks so much!

On Thu, Sep 18, 2025, 6:50 AM harini-venkataraman @.***> wrote:

harini-venkataraman left a comment (Zipstack/unstract#1492) https://github.com/Zipstack/unstract/issues/1492#issuecomment-3307574546

Hi @snanatee-sfg https://github.com/snanatee-sfg,

Yes, you can create dependencies using variable replacement. First, write a prompt that extracts the number of figures (e.g., prompt key: Figure_number).

In the next prompt, reference it with the following syntax for the prompt key - Example -

For each of the {{Figure_number}} figures, extract the titles.

Here {{Figure_number}} is replaced with the earlier prompt’s output.

If you need to enrich the value via an API, you can use the following syntax -

For each of the {{[Figure_number]https://your-api-endpoint.com}} figures, extract the titles.

Here the response of Figure_number will be passed as payload to the API, and the response will be replaced. This lets you chain prompts and pass outputs seamlessly.

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